62 lines
2 KiB
C
62 lines
2 KiB
C
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/* Copyright 2013-2017 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __CVC_H
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#define __CVC_H
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enum cvc_service_id {
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CVC_SHA512_SERVICE,
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CVC_VERIFY_SERVICE,
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};
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void cvc_update_reserved_memory_phandle(void);
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int cvc_init(void);
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/************************************************************************
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* Wrappers for the services provided by the Container-Verification-Code
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************************************************************************/
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/*
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* call_cvc_verify - Call the CVC-verify service to verify the container fetched
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* from PNOR.
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*
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* @buf - buffer that has the firmware component to be verified
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* @size - number of bytes allocated for @buf
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* @hw_key_hash - hash of the three harware public keys trusted by the platform
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* owner
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* @hw_key_hash_size - number of bytes allocated for @hw_key_hash
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* @log - hexadecimal returned by the CVC. In case of verification failure, it
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* indicates what checking failed
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*
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*/
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int call_cvc_verify(void *buf, size_t size, const void *hw_key_hash,
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size_t hw_key_hash_size, uint64_t *log);
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/*
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* call_cvc_sha512 - Call the CVC-sha512 service to calculate a sha512 hash.
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*
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* @data - buffer that has data to be hashed
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* @data_len - number of bytes from @data to be considered in the hash
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* calculation
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* @digest - buffer to store the calculated hash
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* @digest_size - number of bytes allocated for @digest
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*
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*/
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int call_cvc_sha512(const uint8_t *data, size_t data_len, uint8_t *digest,
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size_t digest_size);
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#endif /* __CVC_H */
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